Nortel Networks 450 manual Table C-2 BASE-FX MDA Components, Label Description

Media Dependent Adapters

For installation instructions, see “ Installing an MDA” on page C-11.

Table C-2. 100BASE-FX MDA Components

Item	Label	Description
1	Link	Communications link LEDs (green):
		On: Valid communications link established.
		Off: The communications link connection is bad or there is no connection to this
		port.
		Blinking: The corresponding port is management disabled.
2	F Dx	Full-duplex port status LEDs (green):
		On: The corresponding port is in full-duplex mode.
		Off: The corresponding port is in half-duplex mode.
3	Activity	Port activity LEDs (green):
		Blinking: Indicates the network activity level for the corresponding port. A high
		level of network activity can cause LEDs to appear to be on continuously.
4		100BASE-FX port connectors:
		• Model 400-2FX uses SC connectors.
		• Model 400-4FX uses MT-RJ connectors.

302401-D Rev 00 C-5